Heinz Sold as Deals Take Off

Heinz, a brand in virtually every American kitchen, is selling itself for $23 billion to another household name—Warren Buffett—and a Brazilian private-equity firm that is anything but.

The public face of the deal is Mr. Buffett, whose company, Berkshire Hathaway Inc., will own half of H.J. Heinz Co. and supply cash to help fund the acquisition. But it was 3G Capital, an investment firm with offices in Rio de Janeiro and New York...